Product Overview Lot of 6 used ABB S271-K6A miniature circuit breakers. These are 1-pole, 6A, K-characteristic DIN-rail MCBs rated for 277/480VAC systems. Removed from working equipment. Sold as a lot of 6 units.

Intended Applications Designed for overload and short-circuit protection of circuits with high inrush currents such as motors, transformers, lighting, control circuits, and industrial equipment. Suitable for commercial and industrial panel boards, machinery control, and branch circuit protection where K-curve (8–12× In) tripping is preferred.

Key Features

• 1-pole thermal-magnetic miniature circuit breaker
• K-characteristic trip curve (higher magnetic threshold for inductive loads)
• DIN-rail mounting
• Compact design for panel space savings
• Reliable ABB S270 series construction

Technical & Functional Specifications Catalog / Model Number: S271-K6A (ABB S270 / S271 series)

Electrical Ratings:

• Rated current (In): 6 A
• Number of poles: 1
• Rated voltage: 277/480 VAC (compatible with systems up to approx. 440 V AC)
• Trip characteristic: K (magnetic trip typically 8–12× In)
• Breaking capacity: Typically 6 kA (series dependent)
• Thermal-magnetic protection (overload + short-circuit)

Mechanical:

• Mounting: 35 mm DIN rail
• Terminal type: Screw clamp
• Compact modular design

Condition Note Used circuit breakers removed from service. Units show normal wear consistent with prior use. Sold as a lot of 6. Verify each unit’s markings and condition before installation. Suitable for spare parts, panel upgrades, or replacement use by qualified electricians.

Excellent value lot for electricians, maintenance technicians, or panel builders needing K-curve 6A single-pole breakers.